Stock BOV Test?

kcahrens · 02-08-2011, 02:10 AM

I'm tearing apart my supra and replacing pips and a assload of other things, any one know how to test if the BOV is functioning properly?

Travis89Turbo · 02-08-2011, 02:35 AM

On the 7m it is actually a bypass valve (bpv) If you can blow through it, its toast. The bosch bpv is the best replacement they came out of saabs. I have an extra one, or you can get them off eBay or driftmotion has them!

kcahrens · 02-08-2011, 02:48 AM

Yeah you can defiantly blow through mine. effff.

supraturbo_mk3 · 02-08-2011, 03:04 AM

Well if you hear a flutter around full boost it's either not adjusted properly or it's not working properly....Now it's very uncommon for a piston type bov to go bad....I guess you could check the piston movement make sure it's functioning properly. You could also inspect the spring. My guess is your bov is fine may need adjusted depending on what bov you are using.

Travis89Turbo · 02-08-2011, 03:08 AM

7m bpv go out quite often infact on both of my 7m I ever owned they both went bad. stock bpv cannot be adjusted.

Here is some good reading!

http://www.toyota-supra.info/forums/...to-intake.html

DRAG-N-DRIFTER · 02-16-2012, 10:58 PM

My stock BOV on my MKIII went bad so I took it apart, found sludge built up.... Cleaned it up, put it back together again and sealed it, now it works like new...

cre · 02-16-2012, 11:38 PM

If you have anything besides the thinnest film of oil (from the PCV system) then you've got bigger problems... see: excessive blow-by/bad rings and blown turbo oil seal.

DRAG-N-DRIFTER · 02-17-2012, 01:36 AM

02-08-2011, 02:10 AM	#1
kcahrens Stock Join Date: Jan 2011 Location: Seattle Washington Posts: 16	Stock BOV Test? I'm tearing apart my supra and replacing pips and a assload of other things, any one know how to test if the BOV is functioning properly? __________________ 88 Supra Tegra 7M-GTE Manual Seattle, Washington (Granite Falls)

02-08-2011, 02:35 AM	#2
Travis89Turbo 12psi boost Join Date: Jul 2010 Location: Utah Posts: 332	On the 7m it is actually a bypass valve (bpv) If you can blow through it, its toast. The bosch bpv is the best replacement they came out of saabs. I have an extra one, or you can get them off eBay or driftmotion has them! __________________ 1995 Toyota Supra SE 71k miles. Master power T70 stock 2jzge 1989 Toyota Supra. 1jzgte swap 5 speed of course.. Driftmotion 60-1 single turbo kit. Cxracing FMIC. 2jz 550cc injectors... soon to come..... EMS Stinger. BC 264 cams 680cc injectors Spec stage 4 clutch and A LOT of boost!------SOLD 1999 Ford F350 diesel 2004 Jaguar XJR Supercharged If it hasnt broke you haven pushed it hard enough!!

02-08-2011, 02:48 AM	#3
kcahrens Stock Join Date: Jan 2011 Location: Seattle Washington Posts: 16	Yeah you can defiantly blow through mine. effff. __________________ 88 Supra Tegra 7M-GTE Manual Seattle, Washington (Granite Falls)

02-08-2011, 03:04 AM	#4
supraturbo_mk3 3" Exhaust Join Date: Aug 2007 Location: Cleveland Posts: 96	Well if you hear a flutter around full boost it's either not adjusted properly or it's not working properly....Now it's very uncommon for a piston type bov to go bad....I guess you could check the piston movement make sure it's functioning properly. You could also inspect the spring. My guess is your bov is fine may need adjusted depending on what bov you are using. __________________ IF IT AINT A SUPRA IT AINT SH*T!! 87 Supra N/A JDM 7MGTE, 8psi, 2.5inch Exhaust, 18inch Rim's, 255/45/18 rear, 255/40/18 front, 3inch DP, Ported 3inch elbow, Stage 2 6 puck Clutch 95 Eclipse GST 15psi, 3inch Stainless Steel Exhaust, 3inch DP, MBC, 2.5inch Upper I/C piping, Short Throw Shifter, Stainless Steel turbo inlet, Type S BOV (Sold) 89 Supra Turbo, 12psi, 3inch Exhaust, Ebay intake, 2.5inch Upper I/C piping, ARP Head Studs, Stainless Turbo Manifold Tial BOV (Sold) (Sold)

02-08-2011, 03:08 AM	#5
Travis89Turbo 12psi boost Join Date: Jul 2010 Location: Utah Posts: 332	7m bpv go out quite often infact on both of my 7m I ever owned they both went bad. stock bpv cannot be adjusted. Here is some good reading! http://www.toyota-supra.info/forums/...to-intake.html __________________ 1995 Toyota Supra SE 71k miles. Master power T70 stock 2jzge 1989 Toyota Supra. 1jzgte swap 5 speed of course.. Driftmotion 60-1 single turbo kit. Cxracing FMIC. 2jz 550cc injectors... soon to come..... EMS Stinger. BC 264 cams 680cc injectors Spec stage 4 clutch and A LOT of boost!------SOLD 1999 Ford F350 diesel 2004 Jaguar XJR Supercharged If it hasnt broke you haven pushed it hard enough!!

02-16-2012, 10:58 PM	#6
DRAG-N-DRIFTER Stock Join Date: Dec 2011 Location: Philadelphia Pa Posts: 3	My stock BOV on my MKIII went bad My stock BOV on my MKIII went bad so I took it apart, found sludge built up.... Cleaned it up, put it back together again and sealed it, now it works like new... __________________ DRAG-N-DRIFTER:gr inking:

02-16-2012, 11:38 PM	#7
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	If you have anything besides the thinnest film of oil (from the PCV system) then you've got bigger problems... see: excessive blow-by/bad rings and blown turbo oil seal. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

02-17-2012, 01:36 AM	#8
DRAG-N-DRIFTER Stock Join Date: Dec 2011 Location: Philadelphia Pa Posts: 3	__________________ DRAG-N-DRIFTER:gr inking:

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